A radiating body originally has a Kelvin temperature To, and its ...

[imowrer]

A radiating body originally has a Kelvin temperature To, and its surroundings are at 500K (To > 500K). If the Kelvin temperature of the radiating body is increased to 3To,
 
  the net rate at which the body radiates increases by a factor of 333. What was the original temperature To?

Question 2

In a double slit experiment, the slit separation is constructed to be exactly 4 times the wavelength of the light passing through the slits.
 
  At what angles from the center of the pattern will the third bright fringes on both sides of the central fringe occur? A) 48.6
  B) 75.0
  C) 67.5
  D) 36.9
  E) 43.0

[nicoleclaire22]

Answer to Question 1

536 K

Answer to Question 2

A

[imowrer]

Thank you!

[nicoleclaire22]

Always glad to help...